@mixin animation($setting) {
    -webkit-animation: $setting;
    -moz-animation: $setting;
    -ms-animation: $setting;
    -o-animation: $setting;
    animation: $setting;
}

@mixin animation-duration($setting) {
    -webkit-animation-duration: $setting;
    animation-duration: $setting;
}

@mixin animation-fill-mode($setting) {
    -webkit-animation-fill-mode: $setting;
    animation-fill-mode: $setting;
}

@mixin animation-delay($setting) {
    -webkit-animation-delay: $setting;
    animation-delay: $setting;
}
